Examples with GradientDynamics com.xenoage.zong.io.midi.out.dynamics.type.GradientDynamics used on opensource projects

Example 1 with GradientDynamics

use of com.xenoage.zong.io.midi.out.dynamics.type.GradientDynamics in project Zong by Xenoage.

the class DynamicsFinder method findStaffDynamics.

/**
 * Walk through the measures of the given staff and repetition and find the dynamics.
 * Starts with the given initial dynamic. Returns the dynamic value at the end of the
 * repetition.
 */
private DynamicValue findStaffDynamics(int staff, int repetition, DynamicValue startDynamics) {
    val rep = repetitions.get(repetition);
    // walk through the measures
    Time currentStartTime = rep.start;
    DynamicsType currentDynamic = new FixedDynamics(startDynamics);
    for (int iMeasure : range(rep.start.getMeasure(), rep.end.getMeasure())) {
        if (iMeasure >= score.getMeasuresCount())
            break;
        val measure = score.getMeasure(atMeasure(staff, iMeasure));
        for (val beat : measure.getDirections().getBeats()) {
            val newTime = Companion.time(iMeasure, beat);
            DynamicsType newDynamic = null;
            // if beat is out of the repetition range, ignore it
            if (false == rep.contains(newTime))
                continue;
            // find dynamics change
            if (currentDynamic instanceof GradientDynamics) {
                // wedge ending at this beat?
                val closedWedge = getWedgeEndAt(staff, newTime, (GradientDynamics) currentDynamic);
                if (closedWedge != null) {
                    currentDynamic = closedWedge;
                    // continue with the end dynamic of the wedge
                    newDynamic = new FixedDynamics(closedWedge.end);
                }
            } else if (newDynamic == null) {
                // new dynamic starting? then close currently open period and open new one
                newDynamic = getStaffDynamicStartAt(staff, newTime, currentDynamic.getEndValue());
            }
            // when change was found, apply it
            if (newDynamic != null) {
                if (false == currentStartTime.equals(newTime) && false == currentDynamic.equals(newDynamic)) {
                    val period = new DynamicsPeriod(currentStartTime, newTime, currentDynamic);
                    periods.addPeriodToStaff(period, staff, repetition);
                    currentStartTime = newTime;
                }
                currentDynamic = newDynamic;
            }
        }
    }
    // close the dynamics period at the end of the repetition
    val period = new DynamicsPeriod(currentStartTime, rep.end, currentDynamic);
    periods.addPeriodToStaff(period, staff, repetition);
    return currentDynamic.getEndValue();
}

Example 2 with GradientDynamics

use of com.xenoage.zong.io.midi.out.dynamics.type.GradientDynamics in project Zong by Xenoage.

the class DynamicsFinder method getStaffDynamicStartAt.

/**
 * Returns the {@link DynamicsType} starting at the given time within the given staff (not a voice),
 * or null, if nothing starts here.
 */
@MaybeNull
private DynamicsType getStaffDynamicStartAt(int staff, Time time, DynamicValue currentDynamicValue) {
    val measure = score.getMeasure(atMeasure(staff, time.getMeasure()));
    // when there is a Wedge (possible with a Dynamic as the start volume), create
    // a gradient dynamic, when there is only a Dynamic, create a fixed dynamic
    val foundDynamic = (Dynamic) measure.getDirections().get(time.getBeat(), MusicElementType.Dynamic);
    val foundWedge = (Wedge) measure.getDirections().get(time.getBeat(), MusicElementType.Wedge);
    if (foundWedge != null) {
        // gradient
        val startDynamicValue = (foundDynamic != null ? foundDynamic.getValue() : currentDynamicValue);
        val endDynamicValue = startDynamicValue.getWedgeEndValue(foundWedge.getType());
        // can be replaced later, when end dynamic is found
        return new GradientDynamics(startDynamicValue, endDynamicValue);
    } else if (foundDynamic != null) {
        // fixed value
        return new FixedDynamics(foundDynamic.getValue());
    }
    return null;
}

Example 3 with GradientDynamics

use of com.xenoage.zong.io.midi.out.dynamics.type.GradientDynamics in project Zong by Xenoage.

the class DynamicsFinderTest method getAdvancedExpectedPeriods.

/**
 * See {@link #testAdvanced()}.
 */
private DynamicsPeriods getAdvancedExpectedPeriods() {
    val d = new DynamicsPeriodsBuilder();
    // staff 0
    d.addPeriodToStaff(new DynamicsPeriod(Companion.time(0, Companion.get_0()), Companion.time(2, Companion.get_0()), new FixedDynamics(mp)), 0, 0);
    d.addPeriodToStaff(new DynamicsPeriod(Companion.time(2, Companion.get_0()), Companion.time(3, Companion.get_0()), new FixedDynamics(pp)), 0, 0);
    d.addPeriodToStaff(new DynamicsPeriod(Companion.time(1, Companion.get_0()), Companion.time(3, Companion.get_1$2()), new FixedDynamics(pp)), 0, 1);
    d.addPeriodToStaff(new DynamicsPeriod(Companion.time(3, Companion.get_1$2()), Companion.time(3, Companion.get_3$4()), new FixedDynamics(f)), 0, 1);
    d.addPeriodToStaff(new DynamicsPeriod(Companion.time(3, Companion.get_3$4()), Companion.time(4, Companion.get_1$4()), new GradientDynamics(f, ff)), 0, // ff: implicit target after f-cresc
    1);
    d.addPeriodToStaff(new DynamicsPeriod(Companion.time(4, Companion.get_1$4()), Companion.time(4, Companion.get_1$2()), new FixedDynamics(ff)), 0, 1);
    d.addPeriodToStaff(new DynamicsPeriod(Companion.time(4, Companion.get_1$2()), Companion.time(5, Companion.get_0()), new FixedDynamics(pp)), 0, 1);
    /* TODO: ZONG-100
		//voice 1 in staff 0
		d.addPeriodToVoice(new DynamicsPeriod(
				time(0, _1$2), time(3, _0), new FixedDynamics(mf)), 0, 1, 0); */
    // only 1st time; we do not see the mf again
    // staff 1
    d.addPeriodToStaff(new DynamicsPeriod(Companion.time(0, Companion.get_0()), Companion.time(2, Companion.get_0()), new GradientDynamics(ff, mp)), 1, 0);
    d.addPeriodToStaff(new DynamicsPeriod(Companion.time(2, Companion.get_0()), Companion.time(3, Companion.get_0()), new FixedDynamics(mp)), 1, 0);
    d.addPeriodToStaff(new // f remains, we do not jump in the middle of a cresc
    DynamicsPeriod(Companion.time(1, Companion.get_0()), Companion.time(3, Companion.get_0()), new FixedDynamics(mp)), 1, 1);
    d.addPeriodToStaff(new DynamicsPeriod(Companion.time(3, Companion.get_0()), Companion.time(5, Companion.get_0()), new FixedDynamics(p)), 1, 1);
    return d.build();
}

Example 4 with GradientDynamics

use of com.xenoage.zong.io.midi.out.dynamics.type.GradientDynamics in project Zong by Xenoage.

the class DynamicsFinder method getWedgeEndAt.

/**
 * Checks, if there is a {@link WedgeEnd} at the given time within the given staff (not a voice).
 * If yes, the given open wedge is closed and returned.
 */
@MaybeNull
private GradientDynamics getWedgeEndAt(int staff, Time time, GradientDynamics openWedge) {
    val measure = score.getMeasure(atMeasure(staff, time.getMeasure()));
    val foundDynamic = (Dynamic) measure.getDirections().get(time.getBeat(), MusicElementType.Dynamic);
    val foundWedgeEnd = (WedgeEnd) measure.getDirections().get(time.getBeat(), MusicElementType.WedgeEnd);
    if (foundWedgeEnd != null) {
        val endDynamicValue = (foundDynamic != null ? foundDynamic.getValue() : openWedge.end);
        return new GradientDynamics(openWedge.start, endDynamicValue);
    }
    return null;
}